14 MPG combined. Let’s be honest: if you’re fixated on fuel consumption, you’re in the wrong showroom. The 2025 BMW M5 Sedan 4.4L 8-cyl is not about sipping fuel; it’s about delivering ferocious performance and intoxicating thrills. This car calls to a specific type of driver: one who prioritizes acceleration and handling over long-distance frugality and accepts the consequences at the pump as the price of admission to an exclusive club.

City and highway performance

The EPA estimates reveal a split personality, albeit a predictably thirsty one. In the city, the M5 slurps gasoline at a rate of 12 MPG. Stop-and-go traffic, aggressive launches from red lights (a near-irresistible temptation in this car), and the sheer mass of the vehicle all contribute to this less-than-stellar figure. On the open highway, things improve slightly, with a reported 17 MPG. While hardly groundbreaking, this number reflects the engine’s ability to cruise more efficiently at sustained speeds. But even on the highway, a heavy right foot will quickly erase any potential fuel savings. The reality is, most M5 drivers aren’t focused on hypermiling; they’re enjoying the experience of a high-performance sedan pushing the limits.

Annual fuel cost

Prepare for an annual fuel bill that might make your accountant wince. The EPA estimates the yearly fuel cost for the 2025 M5 at a hefty $4,150. This figure is based on driving 15,000 miles per year, with an assumed even split between city and highway driving, and using recent national average fuel prices (which fluctuate regularly, so this is always an estimate). It’s a significant sum and serves as a constant reminder that owning and operating a high-performance machine comes at a premium. For many M5 owners, however, this cost is simply factored into the overall ownership experience – a non-negotiable aspect of enjoying a truly exceptional driving experience. Explore all Bmw fuel economy data to understand typical BMW ownership costs.

Real-world expectations

The EPA numbers offer a baseline, but real-world MPG often differs, depending on driving style and conditions. If you frequently engage in spirited driving, track days, or spend most of your time in congested urban environments, expect your fuel economy to be lower than the official figures. Conversely, if you primarily use the M5 for long-distance highway cruising with minimal acceleration, you might get slightly better mileage. Ultimately, the M5’s fuel consumption is heavily influenced by the driver’s behavior. The car adapts, but it’s always ready to unleash its power, which comes at a cost.

How it compares

The M5 occupies a unique space. Performance sedans inherently trade fuel economy for power. The Mercedes-AMG E63 S Sedan, another high-performance rival, achieves roughly similar figures, around 15 MPG combined. The Porsche Panamera Turbo S, despite its hybrid powertrain, delivers comparable MPG in real-world driving scenarios focused on performance. Even all-electric performance cars, while boasting zero tailpipe emissions, require careful energy management during high-performance driving; range can plummet quickly under full throttle. The Audi RS7 achieves around 18 MPG. The M5 buyer understands this trade-off. They’re not cross-shopping with a Prius; they’re comparing the M5’s overall performance and driving experience against other high-performance machines and measuring the value across a different set of priorities. Consider the M5 MPG across all years to see how the car evolved.

Tips to maximize efficiency

While the M5 isn’t designed for fuel efficiency, there are steps you can take to minimize consumption without neutering its performance. Smooth acceleration and avoiding unnecessary hard braking can noticeably improve MPG, especially in city driving. Anticipate traffic flow and maintain a steady pace whenever possible to avoid excessive stop-and-go situations. Overinflating your tires slightly (within the manufacturer’s recommended range) can also reduce rolling resistance and improve fuel economy by a small, but measurable, amount.

Use the M5’s driving modes. The “Efficient” or “Comfort” mode settings will alter the engine mapping and throttle response, promoting a more relaxed driving experience and potentially increasing fuel economy. Resist the urge to leave the car in “Sport” or “Sport+” mode for everyday commuting, as these settings prioritize performance over efficiency.

Remove unnecessary weight from the vehicle. Extra cargo adds to the overall load the engine needs to move, which increases fuel consumption. Cleaning out the trunk and back seats of any items that aren’t essential can have a small, but positive, impact. Remember that seemingly negligible weight adds up over time.

Regular maintenance is critical. A well-maintained engine runs more efficiently. Ensure that your M5 receives regular oil changes, air filter replacements, and tune-ups according to the manufacturer’s recommendations. A clean engine is a happy, and more efficient, engine.